BOOT_TOUT_CNT=Val_0x0, MAN_BOOT_EN=Val_0x0, BOOT_ACK_ENABLE=Val_0x0, VALIDATE_BOOT=Val_0x0
eMMC Boot Control Register
| MAN_BOOT_EN | Mandatory Boot Enable. This bit is used to initiate the mandatory boot operation. The application sets this bit along with the SDMMC_BOOT_CTRL_R[VALIDATE_BOOT] bit. Writing 0x0 is ignored. The SDMMC module clears this bit after the boot transfer is completed or terminated. 0 (Val_0x0): Mandatory boot disable 1 (Val_0x1): Mandatory boot enable |
| VALIDATE_BOOT | Validate Mandatory Boot Enable Bit. This bit is used to validate the SDMMC_BOOT_CTRL_R[MAN_BOOT_EN] bit. 0 (Val_0x0): Ignore mandatory boot enable bit 1 (Val_0x1): Validate mandatory boot enable bit |
| BOOT_ACK_ENABLE | Boot Acknowledge Enable. When this bit set, the SDMMC module checks for boot acknowledge start pattern of 0-1-0 during boot operation. This bit is applicable for both mandatory and alternate boot mode. 0 (Val_0x0): Boot ACK disable 1 (Val_0x1): Boot ACK enable |
| BOOT_TOUT_CNT | Boot ACK Timeout Counter Value. This value determines the interval by which boot ACK timeout (50 ms) is detected when boot ACK is expected during boot operation. 0 (Val_0x0): TMCLK x 2^13 1 (Val_0x1): TMCLK x 2^14 14 (Val_0xE): TMCLK x 2^27 |